Helsingin kaupunkipyörät: Avoin data telinekohtaisista vapaiden pyörien määristä

There has been a public bike sharing scheme in Helsinki since 2016. System offers a public API that provides real-time data on availability of bikes at each station. Markus Kainu has collected that data every five minutes since season 2017. You can download the files for any use from his website according to Attribution 4.0 International (CC BY 4.0) license.